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(11)

EP 3 458 864 A1

(12)

(43) Date of publication: 27.03.2019 Bulletin 2019/13 (21) Application number: 17798414.3 (22) Date of filing: 22.05.2017

(51) International Patent Classification (IPC):  G01R 31/02(2006.01) H04B 1/02(2006.01) H04B 3/46(2015.01) H04B 1/06(2006.01) (86) International application number: PCT/AU2017/050479 (87) International publication number: WO 2017/197469 (23.11.2017 Gazette 2017/47)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 20.05.2016 AU 2016901919 (71) Applicant: Teletech Pty Ltd Blackburn, Victoria 3130 (AU)	(72) Inventors: GALLAGHER, Sean Anthony Mt Waverley Victoria 3149 (AU) BASELL, Malcolm Charles The Patch Victoria 3792 (AU) WALLACE, Gregg Alan Menzies Creek Victoria 3159 (AU) (74) Representative: Mewburn Ellis LLP  City Tower 40 Basinghall Street London EC2V 5DE London EC2V 5DE (GB)